It could be bad batteries - but two in a roll ????
About the only thing that blows those fuses is reversed polarity or a shorted cell in the battery.
I keep asking if you are absolutely sure you have the battery hooked up correctly. I asked for yoou to physically find the word NEG or the symbol - on the battery case and you have physically hand traced this connected cable to frame ground...
Can you answer this for me haha,,,
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"